CN202202990U

CN202202990U - Engine mixer

Info

Publication number: CN202202990U
Application number: CN2011202835869U
Authority: CN
Inventors: 陶喜军; 卓斌; 盛利; 李玉; 刘志治; 陈柱林
Original assignee: Guangxi Yuchai Machinery Co Ltd
Current assignee: Guangxi Yuchai Machinery Co Ltd
Priority date: 2011-08-05
Filing date: 2011-08-05
Publication date: 2012-04-25
Anticipated expiration: 2021-08-05

Abstract

The utility model discloses an engine mixer comprising a mixer body, a tubular valve core and a mixer adapter connected to the mixer body, as well as a flow disturbing body located between the mixer body and the mixer adapter, wherein as a combustible gas enters the mixer adapter through the flow disturbing body so as to produce eddies of axial rotation and centripetal rotation in the circulation process, the mixing effect of the air and the natural gas is better; therefore, the working performance and working safety of the engine are improved, and the acceleration performance of the engine is also improved; and engine fire or backfire fault caused by heavy poor combustion is avoided.

Description

Engine agitator

Technical field

The utility model relates to the gas engine field, particularly a kind of engine agitator.

Background technique

Gas engine on the market mainly adopts the premixed combustion mode now, and promptly rock gas and air mix outside cylinder, forms inflammable gas, gets into cylinder at last again, carries out work by combustion.Since be the premixed combustion mode, so mixer apparatus will be arranged.Present mixer mainly contains two kinds: a kind of is the venturi type mixer, and another kind is the proportion expression mixer.The venturi type mixer is installed in spool on the diaphragm, and the motion of diaphragm drives the motion of spool, and inflammable gas mixes at the valve port place of diaphragm with air.What the proportion expression mixer adopted is the mode of directly mixing, and promptly rock gas directly gets into to mix in the body and mixes with air.

The complex structure of venturi type mixer, processing technology and to process conforming requirement very high is made difficulty, and cost is high.The proportion expression mixer structure is simple, and cost is lower, all large batch of Market for refitting that are applied in domestic second, third line city.But because it is simple in structure; The mixed effect of inflammable gas is bad; Particularly in accelerating process, the control of the concentration of inflammable gas is unstable, directly causes the engine acceleration can be poor; Serious because the poor combustion meeting causes engine fire or tempering fault, influence the performance and the safety of motor.

The model utility content

The technical problem that the utility model solves provides a kind of simple in structure, the engine agitator of good mixing effect.

For achieving the above object; The utility model provides a kind of engine agitator; Comprise: mixer body, tubulose spool and the mixer that is connected with the mixer body are taken over and the flow-disturbing body between mixer body and mixer adapter; Air inlet and the mixed gas outlet that is positioned at the mixing chamber left end that the inner chamber of mixer body is divided into the mixing chamber that is positioned at the middle part and is positioned at the mixing chamber right-hand member; The inwall upper edge of mixing chamber circumferentially offers ring-type rock gas air inlet duct and by the outward extending rock gas suction port of ring-type rock gas air inlet duct; The inner port place of ring-type rock gas air inlet duct offers ring-type spool mounting groove, and the sidewall of tubulose spool offers a plurality of rock gas inlet holes, is sleeved in the ring-type spool mounting groove; Rock gas gets into ring-type rock gas air inlet duct through the rock gas suction port; Spurt into mixing chamber through a plurality of rock gas inlet holes again and be mixed into inflammable gas with the fresh air that gets into through said air inlet; After inflammable gas is flowed out by mixed gas outlet, get into the combustion chambers burn acting through taking over through mixer again after the mixing of flow-disturbing body flow-disturbing.

Further; The flow-disturbing body comprises: square base plate and multi-disc spoiler; The multi-disc spoiler is positioned at the circular spoiler machining area that preset out at the middle part of square base plate; Radially cut out the multi-disc spoiler by circular spoiler machining area center to circumference, at last the multi-disc spoiler upwards or to oblique upper is bent by the square base plate.

Further, the multi-disc spoiler mind-set circumference of serving as reasons in the circular spoiler machining area radially cuts and forms.

Further, the multi-disc spoiler by the square base plate upwards the bending line of bending be the tangent line of the said circular spoiler machining area of each spoiler correspondence.

Further, the multi-disc spoiler is the end of a side of spoiler by the square base plate to an end of the bending line of oblique upper bending, and the other end is another side to the center hole of square base plate near a distance.

Further, a plurality of rock gas inlet holes are evenly distributed on making progress in sidewall week of tubulose spool.

Further, the two ends of tubulose spool and ring-type spool mounting groove interference fit.

Technological scheme according to the utility model; Because getting into the mixer adapter again, inflammable gas process flow-disturbing body make inflammable gas in the process of circulation, produce axially rotation and the eddy current that entad rotates; Make the mixed effect of novel air and rock gas better; Thereby improved the service behaviour and the work safety of motor, also improved pick-up of engine, avoided serious poor combustion and the engine fire or the tempering fault that cause.

Description of drawings

Fig. 1 is the main TV structure schematic representation according to the engine agitator of the utility model;

Fig. 2 is the sectional structure schematic representation according to the engine agitator of the utility model;

Fig. 3 is the backsight structural representation according to the engine agitator of the utility model;

Fig. 4 and Fig. 5 are the flow-disturbing body processing structure schematic representation according to the engine agitator of the utility model;

Fig. 6 is the perspective view according to the flow-disturbing body of the engine agitator of the utility model;

Fig. 7 is the structural representation of looking up according to the flow-disturbing body of the engine agitator of the utility model;

Fig. 8 is the side-looking structural representation according to the flow-disturbing body of the engine agitator of the utility model.

Embodiment

Below in conjunction with accompanying drawing, the embodiment of the utility model is described in detail, but the protection domain that is to be understood that the utility model does not receive the restriction of embodiment.

Referring to Fig. 1, Fig. 2 and Fig. 3, this engine agitator comprises: mixer body 1, take over 4 and flow-disturbing body 3 between mixer body 1 and mixer adapter 4 at the inner tubulose spool 2 of mixer body 1 and the mixer that is connected with mixer body 1.Wherein, Mixer body 1 is a tubulose; Air inlet 12 and the mixed gas outlet 13 that is positioned at mixing chamber 11 left ends that inner chamber is divided into the mixing chamber 11 that is positioned at the middle part and is positioned at mixing chamber 11 right-hand members; The inwall upper edge of mixing chamber 11 circumferentially offers ring-type rock gas air inlet duct 14 and by ring-type rock gas air inlet duct 14 outward extending rock gas suction ports 15, the inner port place of ring-type rock gas air inlet duct 14 offers ring-type spool mounting groove (not marking among the figure); The sidewall middle part of tubulose spool 2 is along circumferentially evenly offering a plurality of rock gas inlet holes 16; Be sleeved in the ring-type spool mounting groove of mixing chamber 11; The two ends of tubulose spool 2 and ring-type spool mounting groove interference fit; Make and spurt in the mixing chamber 11 by different direction through a plurality of rock gas inlet holes 16 backs by the rock gas of rock gas suction port 15 entering ring-type rock gas air inlet ducts 14; Air inlet 12 is respectively arranged with adpting flange 121 and adpting flange 131 with mixed gas outlet 13, respectively along circumferentially being evenly distributed with a plurality of mounting hole (not shown)s, can be four on adpting flange 121 and the adpting flange 131; Air inlet pipeline (not shown) is connected on this adpting flange 121, between the two, is provided with the sealing that the sealing gasket (not shown) guarantees air inlet simultaneously; The right-hand member of mixer adapter 4 has adpting flange 141; Left end has mixed gas outlet 18; Same this adpting flange 141 is along circumferentially being evenly distributed with a plurality of mounting hole (not shown)s; Can be four, the adpting flange 131 that mixer is taken over 4 adpting flange 141 and mixed gas outlet 13 is connected through bolt.

Flow-disturbing body 3 is arranged between adpting flange 141 and the adpting flange 131; Comprise: square base plate 31 and multi-disc spoiler 17 (as shown in Figure 6); Multi-disc respectively spoiler 17 by the plate of square base plate 31 towards last or bend to oblique upper; The angle that makes progress or bend to oblique upper is a (as shown in Figure 8); Course of working is: at first preset out circular spoiler machining area 311 at the middle part of square base plate 31; Stamp out center hole and four mounting holes 312 that are positioned at 31 4 jiaos of square base plates at the circle centre position of spoiler machining area 311 again, four mounting holes 312 of flow-disturbing body 3 through 31 4 jiaos of square base plates are installed between adpting flange 141 and the adpting flange 131, radially evenly cut out multi-disc spoiler 17 (as shown in Figure 4) by this center hole to the circumference of circular spoiler machining area 311 then; Can be six, eight, 12 or 15; To cut out multi-disc spoiler 17 at last upwards or to the oblique upper bending, bending can be adopted the mode of punching press, can also be in the end of spoiler 17 sides one end of square base plate 31 edges (among the figure near) punching 322 (as shown in Figure 5).When spoiler 17 upwards bent, the bending line 321 of bending was the terminal line of two sides of spoiler 17, i.e. the tangent line of each spoiler 17 pairing circular spoiler machining areas 311, and when for example spoiler 17 was six, a was 70 degree; When spoiler 17 when oblique upper bends, an end of the bending line 321 of bending is one of them the end of two sides of spoiler 17, the other end be in two sides of spoiler 17 another end to the center hole of square base plate 31 near a segment distance L place (like Fig. 4 and shown in Figure 5); This moment, bending line 321 was b (as shown in Figure 7) with the angle that tangent line became of spoiler 17 pairing circular spoiler machining areas 311; Adjacent like this spoiler 17 orders tilt along circumference (clockwise or counterclockwise), when for example spoiler 17 is 12 to the oblique upper bending; A is 60 degree or 70 degree; When spoiler 17 was 15, a was 70 degree, and square base plate 31 can be thickness 0.8mm; The steel plate of length of side 78mm; The diameter of circular spoiler machining area 311 is 56mm, cuts out spoiler 17 when being eight, and L can be 1.9mm, 2.7mm, 3.8mm, 4.1mm, 5.3mm and 8.2mm.

As shown in Figure 2; The required novel air of engine operation directly gets into mixing chamber 11 by air inlet 12; And rock gas gets into ring-type rock gas air inlet duct 14 through rock gas suction port 15; Spurt into mixing chamber 11 respectively by a plurality of rock gas inlet holes 16 on tubulose spool 2 sidewalls again and mix with novel air and form inflammable gas, after inflammable gas is flowed out by mixed gas outlet 13, take over 4 mixed gas outlet 18 through mixer again after mixing through flow-disturbing body 3 flow-disturbings and get into the combustion chambers burn acting.Inflammable gas gets into mixer adapter 4 again through flow-disturbing body 3 makes inflammable gas in the process of circulation, produce axially the entad eddy current of rotation; Wherein, angle a has strengthened inflammable gas mixing entad, and angle b has strengthened the axial eddy flow of inflammable gas; Make the mixed effect of novel air and rock gas better; Thereby improved the service behaviour and the work safety of motor, also improved pick-up of engine, avoided serious poor combustion and the engine fire or the tempering fault that cause.

More than a disclosed specific embodiment that is merely the utility model, still, the utility model is not limited thereto, any those skilled in the art can think variation all should fall into the protection domain of the utility model.

Claims

1. engine agitator; It is characterized in that; Comprise: mixer body, tubulose spool and the mixer that is connected with said mixer body are taken over and the flow-disturbing body between mixer body and mixer adapter; Air inlet and the mixed gas outlet that is positioned at said mixing chamber left end that the inner chamber of said mixer body is divided into the mixing chamber that is positioned at the middle part and is positioned at said mixing chamber right-hand member; The inwall upper edge of said mixing chamber circumferentially offers ring-type rock gas air inlet duct and by the outward extending rock gas suction port of said ring-type rock gas air inlet duct; The inner port place of said ring-type rock gas air inlet duct offers ring-type spool mounting groove, and the sidewall of said tubulose spool offers a plurality of rock gas inlet holes, is sleeved in the said ring-type spool mounting groove; Rock gas gets into said ring-type rock gas air inlet duct through said rock gas suction port; Spurt into said mixing chamber through said a plurality of rock gas inlet holes again and be mixed into inflammable gas with the fresh air that gets into through said air inlet; After said inflammable gas is flowed out by mixed gas outlet, get into the combustion chambers burn acting through taking over through mixer again after the mixing of flow-disturbing body flow-disturbing.

2. engine agitator according to claim 1; It is characterized in that; Said flow-disturbing body comprises: square base plate and multi-disc spoiler; Circular spoiler machining area is preset out at the middle part that said multi-disc spoiler is positioned at said square base plate, radially cuts out said multi-disc spoiler by said circular spoiler machining area center to circumference then, at last said multi-disc spoiler upwards or to oblique upper is bent by the square base plate.

3. engine agitator according to claim 2 is characterized in that, said multi-disc spoiler forms for radially being cut by mind-set circumference in the said circular spoiler machining area.

4. engine agitator according to claim 2 is characterized in that, the bending line that said multi-disc spoiler is upwards bent by the square base plate is the tangent line of the corresponding said circular spoiler machining area of each said spoiler.

5. engine agitator according to claim 2; It is characterized in that; Said multi-disc spoiler is the end of a side of said spoiler by the square base plate to an end of the bending line of oblique upper bending, and the other end is another side to the center hole of said square base plate near a distance.

6. engine agitator according to claim 1 is characterized in that, the sidewall week that a plurality of said rock gas inlet holes are evenly distributed on said tubulose spool makes progress.

7. according to each described engine agitator in the claim 1 to 6, it is characterized in that the two ends of said tubulose spool and said ring-type spool mounting groove interference fit.